Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

NXX: 779

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-779 A Madison CT   829J PAETEC ITEL, LLC 920      
203-779 0 Madison CT   829J PAETEC ITEL, LLC 920      
203-779 1 Madison CT   829J PAETEC ITEL, LLC 920      
203-779 2 Madison CT   829J PAETEC ITEL, LLC 920      
203-779 3 Madison CT   829J PAETEC ITEL, LLC 920      
203-779 4 Madison CT   829J PAETEC ITEL, LLC 920      
203-779 5 Madison CT HRFRCTCR3MD  318J COMCAST IP PHONE, LLC 920   2004-12-18   
203-779 6 Madison CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2011-05-26   
203-779 7 Madison CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-06-23   
203-779 8 Madison CT   829J PAETEC ITEL, LLC 920   2009-03-30   
203-779 9 Madison CT BLFDCTAP2MD  5562 METROPCS, INC. 920   2002-12-23   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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